Steel name: Low Carbon Steel
  Diagram No.: 2820
  Type of diagram: TTP
  Chemical composition in weight %: 0.046% C, 0.35% Mn, 0.020% P, 0.018% S,
  0.03% sol. Al, 0.010% insol. Al, 0.006% N.
  Note: Precipitation diagram. Carbide PPT after quenching to room temperature and aging
  (quench aging, tempering). Isothermal precipitation diagram for quench-aging
  of an aluminium-killed low-carbon steel. Treatment: Austenitized at 920^oC (1690^oF),
  slowly cooled to room temperature, cold rolled to 75% reduction, held at 700^oC
  (1290^oF) for 20 min and quenched into iced water.
  Source: Hideo Abe, "Carbide Precipitation During Aging Treatmnets", Scandinavian
  Journal of Metals, Vol.13, 1984, p.226.

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